<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/goods' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            v-model="queryInfo.query"
            placeholder="请输入内容"
            clearable
            @clear="getGoodsList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getGoodsList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddpage">添加商品</el-button>
        </el-col>
      </el-row>
    </el-card>
    <!-- table 表格区域 -->
    <el-table :data="goodslist" border stripe>
      <el-table-column type="index"></el-table-column>
      <el-table-column label="商品名称" prop="goods_name"></el-table-column>
      <el-table-column
        label="商品价格(元)"
        prop="goods_price"
        width="95px"
      ></el-table-column>
      <el-table-column
        label="商品重量"
        prop="goods_weight"
        width="70px"
      ></el-table-column>
      <el-table-column label="创建时间" prop="add_time" width="140px">
        <template slot-scope="scope">
          {{ scope.row.add_time | dateFormat }}
        </template>
      </el-table-column>
      <el-table-column label="操作" width="130px">
        <template slot-scope="scope">
          <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
          <el-button
            type="danger"
            icon="el-icon-delete"
            size="mini"
            @click="removeById(scope.row.goods_id)"
          ></el-button>
        </template>
      </el-table-column>
    </el-table>
    <!-- 分页 -->
    <!-- 分页区域 -->
    <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[3, 5, 10, 15]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total"
      background
    ></el-pagination>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 查询条件
      queryInfo: {
        query: "",
        pagenum: 1,
        pagesize: 10
      },
      // 商品列表
      goodslist: [],
      // 总数据条数
      total: 0
    }
  },
  methods: {
    // 根据分页获取对应的商品列表
    async getGoodsList() {
      const { data: res } = await this.$http.get("goods", {
        params: this.queryInfo
      })

      if (res.meta.status !== 200) {
        return this.$message.error("获取商品列表失败")
      }

      this.$message.success("获取商品列表成功")
      console.log(res.data)
      this.goodslist = res.data.goods
      this.total = res.data.total
    },
    // 监听 pagesize 改变
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    // 监听 pagenum 改变
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },
    // 根据 id 删除商品
    async removeById(id) {
      const confirmResult = await this.$confirm(
        "此操作将永久删除该商品, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }
      ).catch(err => err)

      const {data: res} = await this.$http.delete(`goods/${id}`)

      if(res.meta.status !== 200) {
        return this.$message.error('删除失败')
      }

      this.$message.success('删除成功')
      this.getGoodsList()
    },
    // 跳转
    goAddpage() {
      this.$router.push('/goods/add')
    }
  },
  created() {
    this.getGoodsList()
  }
}
</script>

<style lang="less" scoped></style>
